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Archive 2012Canon 70-200/4L request - tripod ring mount circumference measurement
p.1 #1Canon 70-200/4L request - tripod ring mount circumference measurement
I'm hoping someone here on the Canon forum can help me with a quick measurement of a part of their 70-200/4L lens....
I have a Leica 180mm/2.8 lens and its STA-1 tripod mount ring, but unfortunately the tripod ring is made of plastic and flexes considerably in use.
I've heard that the Tripod Mount Ring A for the Canon 70-200/4L's is a close fit to the Leica as they use a similar design that clamps around a flat mounting surface on the lens. Before I place an order for the Canon ring (they're not available locally without special order at high prices), I'd like to know whether the ring will fit the Leica.
May I ask a favour of someone with a 70-200/4L....could you measure the outer circumference of the tripod mount ring surface of your lens and let me know what this measurement is?
Thanks!
I have a Leica 180mm/2.8 lens and its STA-1 tripod mount ring, but unfortunately the tripod ring is made of plastic and flexes considerably in use.
I've heard that the Tripod Mount Ring A for the Canon 70-200/4L's is a close fit to the Leica as they use a similar design that clamps around a flat mounting surface on the lens. Before I place an order for the Canon ring (they're not available locally without special order at high prices), I'd like to know whether the ring will fit the Leica.
May I ask a favour of someone with a 70-200/4L....could you measure the outer circumference of the tripod mount ring surface of your lens and let me know what this measurement is?
Thanks!
Jul 10, 2012 at 11:49 AM
p.1 #2Canon 70-200/4L request - tripod ring mount circumference measurement
davidrwilliams wrote:
I have a Leica 180mm/2.8 lens and its STA-1 tripod mount ring, but unfortunately the tripod ring is made of plastic and flexes considerably in use.
Thanks!
. I find that amazing . Lenses as well built as Leica , and they come with a plasticky tripod mount.
I know people complain about canon gouging us on stuff like rings but at least they are well made.
Hoods on the other had
...........
I have a Leica 180mm/2.8 lens and its STA-1 tripod mount ring, but unfortunately the tripod ring is made of plastic and flexes considerably in use.
Thanks!
. I find that amazing . Lenses as well built as Leica , and they come with a plasticky tripod mount.I know people complain about canon gouging us on stuff like rings but at least they are well made.
Hoods on the other had
...........Jul 10, 2012 at 12:12 PM
p.1 #3Canon 70-200/4L request - tripod ring mount circumference measurement
"I think best alternative for STA-1 is tripod collar for Canon 70-200/4. I think the one I came with Leica 80-200 is made Canon 70-200/4 collar by removing the padding (allowing slightly larger diameter lens to be used with collar). If I get one and DON'T remove the padding it should be correct size for Leica 180/2.8APO. Ordered one from Hong Kong for 10USD, I'll report within ~1 month fron now when the collar gets here."
https://www.fredmiranda.com/forum/topic/895186/105
https://www.fredmiranda.com/forum/topic/895186/105
Jul 10, 2012 at 12:19 PM
p.1 #4Canon 70-200/4L request - tripod ring mount circumference measurement
It is 2.5740 inches or 65.39 mm Jay
Jul 10, 2012 at 12:27 PM
p.1 #5Canon 70-200/4L request - tripod ring mount circumference measurement
Yup - I was somewhat surprised when the ring arrived to discover the whole ring is a plastic molding that needs to be tightened excessively to clamp well to the lens, and that even when clamped tightly, there's significant flex in the foot of the mount that means it's not even close to being rigid.
I think the problem with the Leica ring is that it was originally designed for the 100APO Macro and can also be used on the later 180/2.8APO. When used on the 100 Macro, the lens has a flange (the depth of field aperture guide area) that is "captured" by the hollow inner bearing surface of the ring. This hollow surface would likely be difficult to machine out of metal but a breeze to mold in plastic, but taking the easy way out isn't too "Leica-esque", so it surprises that they'd skimp on an accessory for these amazing lenses.
Jay - the Leica measures a circumference of 8.0625 inches for a diameter of 2.58 inches, so it looks like it should work well. Thank you!
I think the problem with the Leica ring is that it was originally designed for the 100APO Macro and can also be used on the later 180/2.8APO. When used on the 100 Macro, the lens has a flange (the depth of field aperture guide area) that is "captured" by the hollow inner bearing surface of the ring. This hollow surface would likely be difficult to machine out of metal but a breeze to mold in plastic, but taking the easy way out isn't too "Leica-esque", so it surprises that they'd skimp on an accessory for these amazing lenses.
Jay - the Leica measures a circumference of 8.0625 inches for a diameter of 2.58 inches, so it looks like it should work well. Thank you!
Jul 10, 2012 at 12:52 PM
p.1 #6Canon 70-200/4L request - tripod ring mount circumference measurement
davidrwilliams wrote:
Yup - I was somewhat surprised when the ring arrived to discover the whole ring is a plastic molding that needs to be tightened excessively to clamp well to the lens, and that even when clamped tightly, there's significant flex in the foot of the mount that means it's not even close to being rigid.
I think the problem with the Leica ring is that it was originally designed for the 100APO Macro and can also be used on the later 180/2.8APO. When used on the 100 Macro, the lens has a flange (the depth of field aperture guide area) that...Show more →
You're welcome!
Yup - I was somewhat surprised when the ring arrived to discover the whole ring is a plastic molding that needs to be tightened excessively to clamp well to the lens, and that even when clamped tightly, there's significant flex in the foot of the mount that means it's not even close to being rigid.
I think the problem with the Leica ring is that it was originally designed for the 100APO Macro and can also be used on the later 180/2.8APO. When used on the 100 Macro, the lens has a flange (the depth of field aperture guide area) that...Show more →
You're welcome!
Jul 10, 2012 at 01:43 PM
p.1 #7Canon 70-200/4L request - tripod ring mount circumference measurement
...well, after a bit further digging I managed to find the Canon ring locally and it's essentially a perfect fit for the Leica.
When tightened to its maximum it fits very snugly with no flex, almost as though Canon designed it for this lens.
Thanks again for your help!
When tightened to its maximum it fits very snugly with no flex, almost as though Canon designed it for this lens.
Thanks again for your help!
Jul 10, 2012 at 05:01 PM